The development board can be powered by USB cable or USB power supply of emulator and downloader,or can be powered by external power supply.
The module has 8 LED light-emitting tubes onboard,which can be used for running water light experiments and function indications during experiments.
It has four independent buttons,which can do button experiments and interrupt experiments. It has a power indicator that lights up when there is power. It has a reset button for easy operation.
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